Bingjun(David) Xin Email and Phone Number

Machine Learning Project on Diabetes Readmission• Selected GBM, Logistic, K-Nearest Neighbors, Lasso Regression, and Random Forest to calculate accuracy rates of variable, readmitted to help hospital predict readmission of diabetes patients• Separated data set into 5 subgroups according to the age variable and use many-model method to calculate their accuracy rates• Compared and analyze accuracy rates of one model and many-model methods R Project on Airbnb Rental Price… Show more Machine Learning Project on Diabetes Readmission• Selected GBM, Logistic, K-Nearest Neighbors, Lasso Regression, and Random Forest to calculate accuracy rates of variable, readmitted to help hospital predict readmission of diabetes patients• Separated data set into 5 subgroups according to the age variable and use many-model method to calculate their accuracy rates• Compared and analyze accuracy rates of one model and many-model methods R Project on Airbnb Rental Price • Developed models in R to analyze prices over 25,000 Airbnb’s rentals in New York City• Developed random forest and linear models to select the best predictors for the pricing model Python Project on Titanic Survival Statistics • Imported Pandas and NumPy to understand the demographics of Titanic survivors• Created visualizations to understand relationships of passenger class vs fare, and age vs fare SQL Project on Food Delivery Business for ToGoBox• Designed ER diagram, create normalizations and 15 tables under SQL environment, and prepare 10 critical business questions• Created visualizations with Metabase and Tableau to provide insights about critical business questions Show less

• Analyzed data from local hospitals, helped to achieve $1,000,000+ sales of Boston Scientific and Pfizer medical equipment.• Analyzed information and resources from commercial banks to support a loan application of $2,000,000.• Conducted business researches to support executives decide whether to go public or merge with another medical group.

• Conducted business analysis to write a report about heart stents and other cardiac products in the Chinese market.• Analyzed competitors’ business strategies and researches on potential expansions to new private hospitals in Tibet, and Jiangxi.• Predicted trends in Chinese medical equipment market and governmental policies, created three market analysis reports for the executive team.

• Researched the trend of New York City apartments by analyzing housing prices, vacancy rate, and inventory data• Analyzed three models of mezzanine financing, investment patterns and real estate regulations to develop real estate investment trusts for Chinese investors.

• Analyzed a New York-based mortgage company, dug into its real estate valuation models, discussed variables of each model with group members.• Conducted due diligence for credit checks of companies in construction and finance industries.• Participated in writing research reports on recent business performances of our business partners.